function max(a,b){
	if(a>=b){
		return a;
	}else{
		return b;
	}
}
document.write('5和4的较大值是：'+max(5,4)+'<br/>');
document.write('3和6的较大值是：',max(3,6),'<br/>');

var f=function(a,b){
	return a+b;
}
console.log(f(2,3));

var f2=new Function('a','b','return a+b;');
console.log(f2(2,5));
console.log(f2.length);
console.log(f2.valueOf());
console.log(f2.toString());
